from tkinter import *
x = int(input())
y = int(input())
k = int(input())
coords = [x , y , x+k , y , x+k , y+k , x+2*k , y+k , x+2*k , y+2*k , x+k , y+k*2 , x+k , y+k*3 , y , x+k*3 ]

root = Tk()
root.title('ИТ-марафон')
root.geometry('500x500')

canvas = Canvas(bg = 'white' , width = 500, height = 500)
canvas.pack(anchor = CENTER, expand = 1)


canvas.create_polygon(coords)
root.mainloop()
